<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Filter
 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */

namespace Zend\Filter\Word;

/**
 * @category   Zend
 * @package    Zend_Filter
 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class CamelCaseToSeparator extends AbstractSeparator
{
    /**
     * Defined by Zend\Filter\Filter
     * 
     * @param  string $value 
     * @return string
     */
    public function filter($value)
    {
        if (self::isUnicodeSupportEnabled()) {
            parent::setMatchPattern(array('#(?<=(?:\p{Lu}))(\p{Lu}\p{Ll})#','#(?<=(?:\p{Ll}|\p{Nd}))(\p{Lu})#'));
            parent::setReplacement(array($this->_separator . '\1', $this->_separator . '\1'));
        } else {
            parent::setMatchPattern(array('#(?<=(?:[A-Z]))([A-Z]+)([A-Z][A-z])#', '#(?<=(?:[a-z0-9]))([A-Z])#'));
            parent::setReplacement(array('\1' . $this->_separator . '\2', $this->_separator . '\1'));
        }

        return parent::filter($value);
    }
}
